Furnaces & Boilers
How to choose furnaces & boilers
Fuel type
Fuel choice: gas combi for mains connected homes, electric flow for off grid properties, LPG system for rural sites with tank room.
Output tier
Output level: 21 to 24kW fits flats and small terraces, while 30 to 36kW covers houses with multiple bathrooms.
Material
Heat exchanger material: stainless steel or copper/stainless steel for longer life, aluminium for a lighter install.
Colour
Casing colour: white or grey sits quietly in utility rooms, black or red becomes a feature in open plan spaces.
Listing sub-type
Sub-type context: Climate Control Appliances cover central heating, Household Appliances include electric flow units, Home & Garden covers external LPG setups.
What's good
- Combi boilers combine heating and hot water in one unit, saving cupboard space in flats and smaller homes.
- Electric flow boilers need no gas supply or flue, suiting properties off the mains network.
- High output combis (up to 36kW in this range) run two showers at once without pressure drop.
- Stainless steel or copper/stainless steel heat exchangers resist scaling better than lighter aluminium builds.
- Heat only and system boilers pair with cylinders, giving steady hot water for busy households.
Things to watch
- Combi boilers can falter when several taps run at once, so large homes suit heat only or system types better.
- Electric flow boilers in this range sit around 6kW, too low for whole house heating in bigger properties.
- LPG system boilers require an external tank, which rules out flats or homes without outdoor space.
- Coloured casings (black, red, green) look sharp but show scuffs more readily than white or grey finishes.
- Aluminium construction keeps a unit light, yet steel or stainless steel parts generally last longer.
Care & maintenance
Annual service
Gas combi, system and heat only units need yearly servicing to keep heat exchangers and burners clear.
Electric checks
Electric flow boilers need periodic inspection of their electrical connections and internal components.
Radiator care
Bleed radiators each autumn to maintain circulation from your chosen boiler.
Flue clearing
Clear leaves and debris from flue ends on gas and LPG units mounted near walls or outdoors.
Frequently Asked Questions
What should I look for when buying furnaces & boilers?
When shopping for furnaces & boilers, consider factors such as quality, price, brand reputation, and customer reviews. Compare prices across multiple retailers to ensure you're getting the best deal. Look for products that match your specific needs and budget.
How do I choose the right furnaces & boilers?
Choosing the right furnaces & boilers depends on your individual needs, budget, and preferences. Research different options, read customer reviews, and compare specifications. Consider what features are most important to you and look for products that offer the best value for money.
Where can I find the best deals on furnaces & boilers?
You can find the best deals on furnaces & boilers by comparing prices across multiple retailers. Our price comparison tool helps you find the lowest prices from trusted UK retailers including Amazon, eBay, and other major online stores. Check regularly as prices and deals change frequently.
Are furnaces & boilers products worth the investment?
The value of furnaces & boilers products depends on your specific needs and how you plan to use them. Quality products from reputable brands often provide better long-term value, even if they cost more initially. Consider your budget and requirements when making your decision.
What's the difference between different types of furnaces & boilers?
Different types of furnaces & boilers vary in features, quality, price, and intended use. Some may offer premium features while others focus on affordability. Research the specific differences between models or brands to find the option that best suits your needs and budget.










